Improvement in heating-stoves



W. H. .fEELiN.

Heating Stoves.

Patented March 17, 1874.

UNITED STATES PATENT Grauen.

VILLIAM H. TEELING, OF PITTSFIELD, MASSACHSETTS.

lNIPROVEMENT iN HEATlNGiSTOVES.

Specification forming part of Letters Patent No. 148,779, dated March 17, 1874; applic-ation filed February 17, 1873.

To all whom yit may concern: Y

Be it known that I, WILLIAM H. TEELING, of Pittsfield, in the county of Berkshire and State of Massachusetts, have invented an Improved Heater, of which the following is a specification: A

Figure l is a vertical central section of my improved heater, the line c c, Fig. 2, indica-ting the plane of section. Fig. 2 is a horizontal section of the same, taken on the plane of the line K K, Fig. 1.

Similar letters of reference indicate corresponding parts.

This invention has for its object to utilize, to the fullest extent, the heating capaeityof a stove or furnace for raising the temperature of he air which circulates through and surrounds it; and my invention is designed as an improvement upon that class of heaters in which is employed an air-heatiu g chamber, composed of an upper and lower cylinder, connected by air-fines, through which passes heated air, said cylinders and pipes being arranged above the tire-chamber, to cause the heated products of combustion to pass through said chamber and pipes. My invention consists in interposing a series of smoke-dues and air-space between` two plates, one of which covers the fire-space, while the other forms the bottom of a hot-air chamber, containing' a series of open-ended air-tubes, whereby two compartments for heating the air are secured, viz., one in which the air surrounds the smoke-flues, while in the other the smoke surrounds the air-fines, so that in both a large heating-siuface is utilized.

In the accompanying drawing, the letter A represents the fire-grate of my improved stove or furnace. B is the fire-chamber over the grate. C is a plate covering the fire-space and supporting a series of open-ended pipes, D D, of suitable length, Ythrough which the products of combustion pass upward into a chamber, E. The bottom F of this chamber E coincides with the upper ends of the pipes D D, while the smoke-due G projects from its upper part. J J are a series of open-ended tubes, extendingfrom top to bottom of the chamberE.

The air surrounding and heated by the outer sides of the pipes D ascends in the tubes J, and is therein further heated by the gases of combustion, which surround said tubes during Atheir passage through the chamber E. Thus there are two compartments for heating the air, one, H, in which the air surrounds the smoke-dues D, and the other, E, in which the smoke surrounds the air-fines J, and, in both compartments a large amount of heating-surface is utilized for transmitting the heat of the gases of' combustion to the air.

L is a case or shell embracing the entire apparatus, constituting, if desired, the side of the chamber E, and embracing, also, the lower airchamber H and the fire-chamber. The top of this shell, if used, is perforated to permit the escape of the heated air, in the manner indicated 5 or else a hot-air flue may be placed over the chamber E, to conduct the heated air to other apartments or stoves.

I claim- Ihe described combination, in a stove or furnace, of the horizontal air-space H and vertical air-pipes J, with the smoke-fines D, smokechamher E, fire-space B, and perforated bottom I, the air entering at the bottom being heated by contact with the walls of the firechamber in its passa ge to the air-space H, substantially as and for the purpose specified.

IV. H. TEELING.

lVitnesses A. W. BRIEsEN, MICHAEL RYAN. 

